Aim: To investigate vaccine intention, preferences, and factors influencing COVID-19 vaccination in participants of the COVID Insights study. Objectives: (1) Analyse qualitative free text data (content analysis) from questions in the COVID Insights surveys relating to COVID-19 vaccination; (2) Analyse quantitative survey data (descriptive analysis) that accompanies any questions that contain free text data. Context: Free text data is currently being collected as part of the COVID Insights study, run by the Sax Institute as part of a NSW Health COVID Grant. NCIRS has expertise in content analysis of this qualitative survey data. Performing this additional qualitative analysis will aid in the understanding of vaccine intentions, preferences, and factors influencing COVID-19 vaccination in participants of the COVID Insights study, which can help inform the NSW COVID-19 vaccine program. The qualitative data will be coded and will be included with the 45 and Up Study data available to future researchers.